62 University of California Publications in Zoology (Vou. 9 
under the names Phrynosoma blainvillet blainvillei and Phryno- 
soma blainviller frontale. 
6. The horned lizard, Anota maccalli (Phrynosoma maccalli) , 
is distinet from all other horned lizards. The closure of the 
supratemporal openings is unknown in any other lacertilian. 
In recognition of this and its many other differences the genus 
in which it was originally described has been emended to include 
this species only. 
7. A comparison of the tables of measurements shows that 
the subspecies differ very little in size, whereas the species differ 
widely in this respect. 
Transmitted July 28, 1911. 
